<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="login">
    <h1>Login</h1>
    <form method="post" action="Qwer">
        <input type="text"  placeholder="用户名" name="u"></input>
        <input type="password"  placeholder="密码" name="upwd"></input>
        <button type="submit">登录</button>
    </form>

</div>
</body>
</html>